Can I change the way people leave comments?

I'm wondering if there's a way to customize my blog so that people can make comments by scrolling to the bottom of an article, where they would find a "leave a comment" option - instead of having to click on the little icon at the top right of the article. I've had a lot of people tell me that they could not find a way to leave a comments. I fear that people who want to comment are trying to figure it out for a few seconds, not finding it, then moving on. Can this be changed?

Thank you for your response. I've dug into the CSS stuff, and wish I could figure out if paying the $30 would allow me to do what I want - which is change the way people leave comments. I want people to be able to scroll to the bottom of the article and leave comments there.